Are there any FRS SMR, NXDN, P25, and /or IDAS digital capable radios?
Depends on what you mean by "capable".
FRS SMR, I think this is a typo. Did you mean DMR?
NXDN and iDAS are the same thing. NXDN is the protocol. iDAS is Icom's brand name for it. Kenwood uses NexEdge, all the same underlying protocol.
So, the hang up is that the FCC requires voice traffic on FRS to be analog. No exceptions. Since DMR, NXDN and P25 are all digital, they would not be allowed if you were going to follow the FCC rules.
But...
There are radios that will do that. Legality issues aside, of course.
The Kenwood NX-5000 line of radios will do NXDN, DMR, P25 and Analog. They are not legal on FRS since they exceed the 2 watts (0.5 watts on some channels) limitation and have removable antennas. They are also going to run around $1500.00 each if you get it tricked out with all those digital modes.